Device for the housing and storage of microfilm

ABSTRACT

A device for retaining strips of microfilm and comprising a pair of sheets disposed in face-to-face relationship, the sheets being secured together at spaced fastening points whereby strips of microfilm can be inserted between the sheets and located at the fastening points.

United States Patent Inventor Janice Marilyn Lithgow London, EnglandAppl. No. 772,336

Filed Oct. 31, 1968 Patented Aug. 3, 1971 Assignee MicrogenLimitedNottingham, England DEVICE FOR THE HOUSING AND STORAGE 0F MICROFILM 6Claims, 2 Drawing Figs.

US. Cl 40/159 Int. Cl G091 1/10 Field of Search 40/ 158 B,

[56] References Cited UNITED STATES PATENTS 2,127,677 8/1938 Collin40/159 X 2,775,050 12/1956 Ellsworth 40/159 3,238,655 3/1966Enge1stein.. 40/159 3,283,434 11/1966 Gurin et a1 40/158 PrimaryExaminer-Robert W. Michell Assistant Examiner-Wenceslao J. ContrerasAnomey-Holman & Stern ABSTRACT: A device for retaining strips ofmicrofilm and comprising a pair of sheets disposed in face-to-facerelationship, the sheets being secured together at spaced fasteningpoints whereby strips of microfilm can be inserted between the sheetsand located at the fastening points.

DEVICE FOR THE HOUSING AND STORAGE F MICROFILM of sheets of materialdisposed in face-to-face relationship, the

sheets being secured together at a plurality of spaced fastening pointsso as to permit insertion of strips of microfilm between the two sheetsof material, each strip of microfilm being located between the sheets bythe material extending between the sheets of material at the fasteningpoints.

In the accompanying drawing:

FIG. 1 is a plan view of one example of a device in accordance with theinvention,

FIG. 2 is a side view of the device of FIG. 1.

Referring to the drawings there is provided a pair of sheets of material10, 11 which are positioned in face-to-face relationship. The sheet 11has a larger dimension in one direction to define an overhanging edgeportion 12. Moreover, the sheets are secured relative to each other at aplurality of spaced fastening points 13. The fastening points 13 occuralong the four edges of the sheet 10 and also in rows between the edgesof the sheet but parallel to the edges of the sheet. in this mannerstrips 14 of microfilm can be inserted between the sheets 10 and 11intermediate the rows of fastening points. As is illustrated, the stripsof microfilm can be inserted so that they lie along axes at right anglesto each other although it will be understood that when inserting thestrips 14 they will be disposed generally in the same direction.Moreover, the fastening points act to locate the strips relative to eachother and to the sheets 10 and 1 l.

The overhanging edge portion 12 of the sheet 11 is provided to enablethe device to be secured to a mounting such for instance as a documentfile. The method of fixing may be by staples or the like. Alternativelyand as illustrated, the edge portion 12 may be provided with an adhesivecoating 15 to enable it to be stuck to the mounting.

If desired and when the sheet 11 is formed from flexible material, theoverhanging edge portion 12 may be extended as at 12a so that it can befolded over the sheet 10 to form the equivalent of a file.

The sheets 10 and 11 are formed from a transparent synthetic resinmaterial and may be either flexible or rigid depending upon theapplication. The thickness of the two sheets can be equal and againdepends upon the application. The fastening points 13 may be constitutedby spot welding the two sheets at the respective points alternativelythe two sheets can be secured together by adhesive at these points. inthe drawing the two sheets 10 and 11 are shown as being in parallelrelationship but in practice the sheets will be in contact with eachother at the fastening points whichever method of securing the sheetstogether is employed.

Having thus described my invention what I claim as new and desire tosecure by Letters Patent is:

l. A device for storing strips of microfilm and comprising a pair ofsheets of material disposed in face-to-face relationship, the sheetsbeing secured together at a plurality of spaced fastening pointsdisposed at regularly spaced intervals over the area of the sheets ofmaterial, said points being spaced from each other in the longitudinaland vertical directions thereby to pennit insertion of strips ofmicrofilm between the two sheets of material in directions substantiallyat right angles, each strip of microfilm being located between thesheets by the material extending between the sheets of material at thefastening points.

2. The device according to claim 1 in which one of the sheets has alarger dimension in one direction so as to define an overhanging edgeportion.

3. The device according to claim 2 in which said edge portion isprovided with an adhesive coating whereby the device can be secured to abacking.

4. The device according to claim 2 1n WhlCh said edge portion is of asufficient length to enable it to be folded over the other sheet todefine a file.

5. The device according to claim 2 in which the fastening points occuralong the edges of the sheets and between the edges of the sheets inrows extending parallel to the edges of the sheets.

6. The device according to claim 2 in which the sheets are formed fromtransparent synthetic resin material and are welded together at saidfastening points.

1. A device for storing strips of microfilm and comprising a pair ofsheets of material disposed in face-to-face relationship, the sheetsbeing secured together at a plurality Of spaced fastening pointsdisposed at regularly spaced intervals over the area of the sheets ofmaterial, said points being spaced from each other in the longitudinaland vertical directions thereby to permit insertion of strips ofmicrofilm between the two sheets of material in directions substantiallyat right angles, each strip of microfilm being located between thesheets by the material extending between the sheets of material at thefastening points.
 2. The device according to claim 1 in which one of thesheets has a larger dimension in one direction so as to define anoverhanging edge portion.
 3. The device according to claim 2 in whichsaid edge portion is provided with an adhesive coating whereby thedevice can be secured to a backing.
 4. The device according to claim 2in which said edge portion is of a sufficient length to enable it to befolded over the other sheet to define a file.
 5. The device according toclaim 2 in which the fastening points occur along the edges of thesheets and between the edges of the sheets in rows extending parallel tothe edges of the sheets.
 6. The device according to claim 2 in which thesheets are formed from transparent synthetic resin material and arewelded together at said fastening points.